Counter-current electrolyte injector

Abstract

The invention is concerned with an electrolyte injector for an electrogalvanizing line, wherein electrolyte is injected backwards into the space between the steel strip 14 and the anodes 15. The injector, disposed on the side where the rising strip leaves the electrolyte bath 12, has a nozzle 9 provided with a plurality of injection pipes 11 allowing the electrolyte from the bath 12 to pass freely between these pipes 11.

We claim: 
     
       1. Counter-current fluid injector composed of a fluid inlet duct, a chamber and an injection nozzle, characterized by the fact that it comprises: at least one fluid inlet duct (1),   a central fluid flow distribution chamber (2) extending along the whole length of the injector, into which emerges the inlet duct (1),   numerous openings (4) drilled through the internal wall (5) of the injector, in the lower part of the said central chamber (2),   a peripheral chamber (6), coaxial with the central chamber (2) and surrounding it along the whole of its length, which serves to homogenize the flow of fluid, and into which are inserted a sufficient number of centering pins (8),   a barrier (7) situated in the peripheral chamber (6) for directing the flow of fluid,   a nozzle (9) drilled with numerous holes (10),   numerous injection tubes (11) extending the holes (10) and allowing the electrolyte from the bath (12) to pass freely between the said tubes (11).   
     
     
       2. Counter-current fluid injector according to claim 1 and characterized by the fact that the extremity of the injection tubes (11) has a circular cross-section. 
     
     
       3. Counter-current fluid injector according to claim 1 and characterized by the fact that the extremity of the injection tubes (11) has a flat cross-section. 
     
     
       4. Electrodeposition line cell comprising at least one injector according to claim 1, conductor rolls, and soluble anodes (15) characterized by the fact that the width of the anode tops (15) is reduced.